Automobile-buffer.



A. L. MOGREGOR.

AUTOMOBILE BUFFER.

.t-PPLIOATION FILED JULY 20,1910.

1,010,661 Patented Dec. 5, I911.

STATES PATENT onn'ron ALLAN M GG'RE GOR, or CHICAGO, rnnmors. h

' ao'romonrnn-nurrnn i r Specification of Letters Patent.

-To all whom it may concern:

Be it lmown'thatl, ALLAN L; MGGREGOB, a citizen of the United States, residing in Chicago, in the county of Cook and State. of Illinois, have invented certain new and use- 'ful Improvements in Automobile-'Buiferg of which the following is a specification.

This invention relates to buffers for use on automobiles to protect the morefexposed parts and accessories at the forward end of the machine from the injurious or destructive effects of accidental collisions, and the 35 involving the drilling of b'olt holes or other .alteration or weakening of the machine frame for its attachment; and to provide a mounting andsupport for the buffer-bar q capable; of cilshioning the latter against strains from practically any direction.

Other minor objects and advantages served-by thefinvention will beapparent from the following description, taken 1n connection with the accompanying drawings,

wherein o I p Figure 1 isa top plan view of my improved automobile bufier, showing the same as-mounted on the forward end of the vehicle frame. Fig. 2 is an enlarged cross-sectional view on the line.2 2 of Fig. 1, looking in the direction indicated by the arrow. Fig.

3 is a detail view partly in vertical section andpartly in side elevation illustrating the manner and means of attaching the springsupporting and carrying arms of the bufferbar to the forward end of the vehicle frame.

' Referring-to the drawing, 10' designatesthe forwardly and downwardly curved end portions ofthe usual side bars or sills of the frame, to the forward ends of which are pivoted, y Belts 1]., the usual forward semi-- elliptic springs 12.

13 designates the usual form, the same being directly mounted insplit collars 14 adapted to be clampedupon the bar 13 at the proper-points the bufferbar which .isin lieve the, clamps of 'such'strams.

thereon according to the width'of the frame Patented Dec.5, 1911. Application filed July 2o,"191o.- Serial No. 572,831.

of-the particular vehicle to which the device L is applied. Collars 14 are clamped u on the bar 13 -by clamp-bolts 15 passing tli apertured depending lugs 16 and 17 on said collars. Each lug 17 is vertically slotted or socketed, as shown at 18, to receive the for ward downwardly turnedend of S-shaped e5 leaf springs 19'; these springs ,19 constituting supporting and carry ng arms for the buifer-- bar, and thus combining the functions both "of supporting and carrying means and cush- -1on1ng. means for the buffer-bar. The upwardly turned rear end portions, of the springs 19 -are suitably 'and preferably ad-' justably attached tothe forwardly projecting portion of the vehicle frame; the means rough herein shown for this purpose comprising 1 clamps adapted for attachment to the forward ends of the sills 10 and themselves carrying. means for attachment thereto of the inner or.

rear ends of the springs 19. Asherein shown,

each ofjthese clamps comprises a pair of slotted clamp-bars 20 and 21 .drawn'together upon the sill 10 by tie-bolts22. Slots 23 and 24 formed in one end of the clamp-bars 20 and 21 render the clamp. adjustable to accommodate sills of varying widths. The upper clamp-bars 20 are also slotted in a direction at right-angles to th'e slots 23 to receive the rear ends of the springs 19; said rear ends of the springs being provided with a series of apertures 25 adapted to be engaged by a screw-26 threaded through the slotted portion of the upper clamp-bar to confine the spring against displacement relatively to h clamp? T e forward ends" of the .springs 19 are similarly apertured andengaged by the clamp-bolts 15 whereb tosecurely attach the collars 14 to the onward ends of saidsprings;

-- In 1 the preferred arrangement; herein shown the spring arms 19 are disposed widthwise in-the vertical planes of the sills 10., and their rear ends are so curved that i T the portionsthereof below and in advance of the points ofattachment to the clamps abut directly against the joints attheforward extremities of the side sills and vehlcle springs,-

whereby the .latter constitute the. prmclpal abutment'to receive the thrusts of collision, and-thus in a large measure re- I claim- 1 1.- In an automobile buffer, the combination of a buffer-bar, S-shaped springs distured at their rear en s, c

the rear apertured ends ofsaid springs, and

tures of sai screws enga ing said clamps and the apersprings whereby to secure the rear ends of the latter in said clamps, substantially as described.

2-. In a buffer for use upon an automobile having side sills and vehicle springs jointed at their forward extremities, the combination of a bufi'er-bar, S-shaped springs c'onstituting supporting and carrying arms for said buffer-bar, means for attaching said $-shaped springs at their forward ends to said buffer-bar, and means for attaching said S-sha ed springs at-their rear ends to said side sills, said S-shaped springs-being disposed widthwise in the vertical planes of the side sills and abutting agalnst the joints at the forward extremities of said side sillsand vehicle springs, substantially as described. a 3. In an automobile-buffer, the combination of a buffer-bar, clamp-collars in which lars' each having a pair of apertured lugs one of which is formed with a slot intersecting the aperture thereof, springs constituting supporting and carrying arms for said buffer-bar and having apertured forward ends engaging said slots, clamp-bolts passed through said apertured lugs and spring ends, and means for securing the inner ends of said springs to the vehicle, substantially as described. 1

4:. In a buffer for use upon an automobile having side sills and vehicle springs jointed at their forward extremities, the combination of a buffer-bar, S-shaped springs constitutin supporting and carrying arms for said bu%er-bar, means for attaching said 3- shaped springs at their forward ends to said bufi'er-bar, clamps embracing said side sills, and means for attaching the rear ends of said S-shaped springs to the uppersides of said clamps, the said S-shaped springs below their points of attachment to said clamps abutting against thejoints at the forward extremities of said side sills and vehicle springs, substantially as described.

ALLAN L. MCGREGOR.

Witnesses Lois FoRon, SAMUEL vN. Ponn. 

